Truck



wm w; w25-1 'wz-m3@ J. H. HERTNEIR f TRUCK original Filed sept. 1o. 1919. 3 sheets-sheet 1 RSZFER@ J. H. HERTNER TRUCK Original Filed Sept. lO. 1919 a@ i 7, w25

24. H. HRTNER TRUCK 1919 3 Sheets-Shaw -s rigigal Filed Sept. 10:

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rggnsl finalisation ille@ Mi. i919, fiorini. lo.` 322,925.

enfl Useful lniproveinents in finti Relating to Trucks, of

iicntion.

This inventionreletes s. trnelr, 'particularly n Vtrnel: oit tlie 'nlntiomn type. nilsptecl to lonrl enel transport or more articles, commodities, n'intei sorooi'itniners therefor Jfrom piene to nii-.ice in a rapid stime, elesirefl.

i 'ircli-vision olii rnv apwliieli time following speen manne-if and to unlonol ti e i..ns application is s.

r/lication for trnclr. iilecl @si terminer itl. i919, Serie-.l No. 322,885, llo. Ltitt, fins. i9. 192e.

@ne obiect the the platform elevating; meennnisni nnoi riperating'motmr therefor upon tlie loacl loenrinn portion of tlie trnclr freine, ivlfierslijv the Weight otthis meelinnism anti rnotor inav lne utilized to steaclv the frame smal overcome anv tendencv of its loscl carrying; vend to rise (ine to tlie rapiti lianlinf and reversal of movement oi tlie trncli'.

lnotlier obiect of i-lie invention is to so position tile platform elevating nieelienisni and operating: inotor therefor that lie sinne .may lie. .readily accessible Jtor assembly. flisnsseinblv. inspection, adjustment. lnln'ica-.

tion enrlrepairs. v

Another oliiert ot tlie. invention is te mount the platform operating' motor upon ille mein freine of the truck. this arrsngre ment permitting the traction motor to loe positioned horizontally. ii" clesiieci, anti freeiv accessil'ile nn the batteries to lie positionerl in n, relatively loiv. horizontal plaine,

"whereby the center o gravity oi the if'eiiieie lon/ered and. the operators View of tlie loscl carrying: enti of tlie truck is nt all tinies unobstructed.

notlier object ot the invention is to proviiie an limproved mechanism for raising) and lowering tlie platform., n'lierelo3f relatively heavy loads may oe raiserl and lowercrl in en. ensv manner. y

notlier object of the invention is to "pio vide en improved platform raising and low invention is to mount Bividecl anti this application tiled Sera-.1 o. I

l ering mechanism of relatively simple construction' capable of economical mamita@ ture and ready assembly.v

. Another object. of the invent-ion is to pro- 55 vide an improved elevatingplatform truck capable of operating to load, transport and nnlonclninterials or articles in o. rapid msn- 4 nel'.

A further oliject of the invention is to @0 provide nn iniproverl elevatingr platform truck in wliicii tlie elevating` rnecliani11N nml the motor therefor ninv oe operated to rinse and lower relativelyv lie-ery loads -"tliout undue strains upon the mechanism or motor ti in a ready nnil quick manner.

tlier objects of the invention will be apparent to tliose skilledL in the art to which inv invention relates from the following cle scription token injconnection with the ac- "iff conipnnying drawings.

For tlie purpose oi illustration, I have, in the accompanyingh drawings shown and herein described one forni of apparatus ein boclying in v invention. 75 in the drawings, Fig. l illustrates a side elevation of a 'motor truck, partly broken away, embodying in v invention.

Fig. 2. is n fragmentary top plan vien'.

parts thereof being lirolcn a vn v. so

Fig'. 3 is a longitudinal sectional view on the line 3-3 of Fig'. 2.

Fig. 4l is a view corresponding' to Fig.

but showing the platform elevated. Fig. is a` transverse sectional view on g5 the line 5-5 of Fig. t5 is a. transverse section on the lino SWG ci' Fign.

Fig. is a fragment-ary sectional view on tine line 'l-fi' of Fig'. f.

inthe drawings. l indicates as :in entirety the frame of tlie truck. The truck. frame may comprise sfpair of longitndinnl, relatively vlow main or siete members l, cross ineinliers 'ld.,ld, an enclinernoer lt.y 95 a pair ot inner` elevntcrl horizontal sills' (not shown), connected at their inner ends to the main or sirle members l liv brackets l?, a 'pair et outer horizontal sills 1b', cross liars nnrl upriglits lg (only one being i0@ shown). All ot' tlxese members or elements may be securecl together in sny Well known manner, for example by rivets, to form a rigid trame and the sills andV cross members may be channel or angle shaped to insure strength and rigidity; Whereas the longitudinal memhe s 1 are preferably formed from l.. bars so that their inturned walls 72a may serre as supports for an yiutermediate frame 70 to be later described. The horizontal sills, cross bars and uprights 1S may constitute an auxiliary or elevated frame or section to support lthe necessary storage batteries 2 anda traction motor 3.

The cross bars preferably extend beyond the longitudinal side members 1 to form an enlarged housing 5 which protects the traction wheels 6 (see Fig. 1) and encloses the motor 3 therefor and storage batteries 2. The traction Wheels 6 are mounted on spindles which are connected tothe adjacent axle (not shown) by suitable knuckles whereby they may be used for steering purposes. Thepknuckles and axle are preferably constructed to receive and support driven axle sections, which. are connected by un1- versal joints with ,the wheel spindles to drive the latter.

7'indicates a pair of relatively small supporting Wheels mounted below the main or relatively lowportion ot the truck frame 1. The wheels it may be ci any desired form `of construction. 7 indicatesthe axle for the wheels 8 indicates a truss member arranged midway between and parallel to' the :trame members l, The front and. rear ends of the truss member 8 are connected'in any well known manner to and supported by the cross members 1d and 11.. 8 -indicates an opening formed in the truss member 8 to"'receive and support a king bolt 9 connected at its lower free end to the axle 7a. The lower free end of the king bolt 9 is preferably bifurcated as shown at 9, and straddles the axle 7a. 9d indicates a pin or bolt which extends through openings formed in the bifurcations 9- and axle 7 and pivotally connects the king bolt 0 and axle n together, this `form of construction permitting the wheels 7 .to rock about the lower end of the king bolt 9 and accommodate themselves to the unevenness of the floor at all times.

10 indicates a platform oir-which the operative stands. The platform may be pivoted to a bracket 10a supported by depending' plates 10b on the uprights le', Whereby it may be raised and thrown back against the truck when. the latter is not in use. 11 indicates a brake pedal so arranged on or relative to the platform that the operativ". can readily operate it with his foot while standing thereon. The pedal 11 is preferably pivoted on the same rod or shaft as the platform l() so that' both may be thrown into an inoperative position together. The pedal 11 is connected to and operates the brake (notfshown) which acts upon the traction motor 3 or an element driven thereby. Thebrake is spring operated and the connections are so arranged that downward pressure on the pedal 11 will release the brake, which condition will continue until `the pressure on the pedal is released. .-12 indicates a controller through which the electric circuitv from th'e batteries 2 is completed to operate the motor 3 in either direction. 13 is a suitable handle having a trigger mechanism 13, for operating the controller 12.

The traction and supporting-Wheels 6 and 7 are preferably connected together Whereby they may be steered simultaneously to facilitate operation and handling of the truck from place to place and intoy and out of loading and unloading position. The steering mechanism is operated by a handle 14a, pivoted to a post 14 which is rmounted in. suitable bearings carried by the adjacent upright lg. The lower `end ofthe post 14 carries an arm 14h pivotally connected to a rod 15 which in turn is connected to one of the wheels G; whereas the king bolt 9 has secured to it a lever 23, pivotally connected to a rod 23, .by means of which both pairs owheels 6, 7, are connected for simultaneous steering operation. As the steering mechanism may be or" any desired constrnction and is fully described in my,v aforesaid application, further description thereof will not b e necessary. r

25 indicates as an entirety the raising and lowering platform for the truck. It is preferably formed of sheet metal shapedP to form a top 25 having de' riding side Walls 25h` The frame end Iinem er1I is preferably cut away at 1" tq permit the platform, when lowered, to lie flat with its lupper surface. 26, 2G, indicate a pair`of .channel 'hars arranged-near the opposite ends of the plat-form 25 and extending ,transversely thereof. At its opposite yends each bar 26, A26a, is provided with depending arms 26", which at their lower ends are shaped to fo'rnlinclines 4, all disposed correspondingly at'the same angle to the horizontal, and arranged to be engaged by a set of rollers 28 carried by a. frame 70 to raise and lower the platform 25.

The frame may comprise a .casting having end members 70, 70", and side members 70. At its opposite ends the Walls ot the frame 70 are thickened (see Fig. 6) and formed with openings 73 in which are mounted stub shafts 74. The upper shafts 74 carry the rollers 28 already referred to; while the lower shafts Vcarry rollers 74 which engage suitable guides 74a on the inturned ends 72a of the frame members 72 and permit the frame 'TO-.to inove endwise horizontally in opposite directions to effect the raising and lowering of the platform Ashown at 75a. 75l.

` igeamee.

25. The lowermost or normal position opt,l

the batteries (see Fig. 3) andhwhen moved 'ioifwarrhit operates througwlrlthe engage` ment of. the rollers 2S with -the inclines 4f to elevate the platform to the position shown .in Fig. Ll. The platform is held against longitudinal movement by a pair of `linl s T5 preferably pivoted-at their opposite ends -in any Well known manner to the frame members l and platform 25, as l 76 indicates a guide plate fixed to each frame member la and serving to guide the adjacent link 75 as it imoves up and down. As Will be understood, the linlrs 75 permit the platform 25 toprise substantially vertical, but hold: it against longitudinal movement in order that the rollers 28 may co-act with the inclines 4" lo elevate the platform.

70 indicates means for maintaining the frame 70 in sliding engagement with its guides Teig, thereby preventing tilting ot the frame 70 or movement ot its inner end upwardly due to the positioning of a load at or adjacent its outer end. The means 70 are secured to the frame 1, being preferably carried by the relatively low frame section l". ln the illustrated form of construction, the means T0 comprise one or more upstanding devices 70X, or pairs of such devices, preferably secured'to the in'turned flanges of the side members l and each prorided with a laterally extending flangeor lip 70x', which engages the upper surface vot' the frame 70 or theprojecting rib thereot'. (see Fig. 5).

29 indicates the power mechanism for moving the frame 70 forwardly and rear-V wardly ou the guides 74 to eil'ect the raising; and lowering of the platform 25. (lf this mechanism, 29 indicates a hollow casingforming a chamber 30 for suitable speed Areducing gears and a chamber 31 for a screw or Worm 32 and a nut 33.

38 indicates a cradle or other suitable-de-- '32 in either direction to raise or lower the platform 25. The motor 39 and casings 2971 are rigidly connected to the frame members l and cross members ll.' certain oi which connections are `indicated at 7l. The motor 39g speed reducing);` gears and other' elements, forming: part of the power mechanism are preferably constructed in the manner set y ia- .forth in niy aforesaid application and theretore vfurther description will not be neces sary herein# The nut 323 preferably comprises a hollow thrust member, which slidably tits at its inner end into an opening. leading into the chamber 31. The outer end of the nut 33 s bifurcated at 76 to receive between them thel web portion 77 or a lug carried by the intermediate frame ?0. The bifurcations 76 75 and web portion 77 are formed with openings` adapted to register with each other to receive a pin 77, whereby the nut and trame 7() are connected together. y

When the motor 39 is mounted as justI 80 set forth, I prefer to provide an electric brake, the solenoid 78 `for which i's preterably mounted in any desired manner on the cross member ld (see Figs. 2 and 5).

79 indicates a brake Wheel fixed to the shaft 30 and arrangedto be ,engaged by braking elements 80. The braking` elements may be of any desired construction. They are reterably lcontrolled by a spring 8l, Wliici tends to maintain them in engagement with the brake Wheel at all times, and a rocker 82, which is connected to and operated by the core of the solenoid 7 8. The electric connections for the solenoid are such that When the motor 39 is stopped all currentis cut out of the solenoid; but When the motor .is started current will flow to and through the solenoid winding and energize it and hence cause the brake to .be released.

The motor 39 may be controlled by a suitable controller (not shown) which is arranged to be actuated by a handle 56, mounted on the truck frame as shown in Fig. l; and such controller may be operated automatically to neutral position by the mechanism shoivn in my aforesaid application, the connection' thereof with the frame 70 being shoirn at 64 (Fig. 2).

In my construction of motor-truck l secure many important advantages, namely, amonga others. compact-ness, simplicity and cheapness of construction. Furthermore, l am enabled to properly distribute the weightot the vehicle upon all its wheels,`tliis arrangement also being advantageous in that it tends to permit easier steering. By mount ing; the elevating motor 39 andthe driving connections between it and the elevating. platform below the latter preferably at a point adjacent to the supporting wheels Y, l

the operator standing on` the plat-form has an.unobstiucted view at all tunes. Notwithstanding; the fact that the elevating; motor is arranged below the rising andlallirig,r

p atform, l am enabled to provide a 'rela- `-tivelylow vehiele frame on which the platgfest themselves without departing from the spirit and scope thereof. My disclosures and the description herein are purely illustrative and are not intended to be in any sense limiting.

What l claim is: y

l. In apparatus ot the class described, the combination of a 'trame having an elevated section and a relativelyv low section, supportinaF wheels tor said trame` a platform movably supported on said relatively7 low frame section and adapted to be moved upwardly relative thereto, a motor supported yby said relatively low trame section underneath said platform, an intermediate frame slidably mount-ed on said relatively low 'trame section and arranged to move said platform vertically when moved in one direction, and connections between said motor and said in,- terniediate trame for movingthe latter.

2. ln apparatus ot' the class described, the combination ot 'a trame havingand elevated section and a relatively low section, supporting wheels for said frame. a platform movably supported on said relatively low trame section and adapted to be moved upwardly relative thereto. a motor supported by :said relatively low 'frame section underneath said platform. an intermediate vtrame slidably mounted on said relatively low 'frame section. (7o-acting' elements between said platform and said intermediate trame arranged to move the platform upwardly wl'ien said intermediate frame is moved in one direction. and connections between said motor and said intermediate. trame for moving it in one direction. r

B. ln apparatus of the class described, the' combination of a frame having,l a relatively low section comprising a pair of longitudinalside members, a platform,normally resting-,on said members, an intermediate,iframe movably mounted onsaid longitudinal side members and adapted to raise and lower saidplattorln, a motor supported between said side members underneath said platform, and connections between 'said motor and intermediate frame for moving the'latter.`

Ll. In apparatus of the class described, the combination of ay rame'having relatively moved. i

iaie'arae `low section, a platform arranged "to engage said relatively low sectionwvhen in its lowered position, an intermediate trame slidably mounted on said relatively low frame section, inclines and rollers carried by said platform and intermediate frame and arranged to eo-aet to move said platform relative to said low trame section when said intermediate trame is moved in one direction, and means including a motor arranged un- 'derneath said platform and supported by said relatively low frame section ,for moving said vintermediate frame and through it move said platform.

ln apparatus of the class described, the combination of a trame having a relatively low section, supporting' wheels `tor said `lrame, a platform on and movable upwardly and downwardly relative to said low frame section., and mechanism arranged underneatli said platform and carried by said low 1tri-une section for operating said platform` said mechanism including a frame mounted to reciprocate `on said low frame section, a motorl toi operatingI said reeiproeatable trame. and connections between. said reciprocatable frame and platform.

6. :in a. truck construction, the combination of a pair of frame members, supporting wheels therefor, a platform mounted to move upwardly and downwardly relative to said trame members, an intermediate frame arranged underneath `said platform and slidably mounted en said trame members and operatively connected to said platform to move it, a easing element and a thrust element, one of said elements beingeonnected to said intermediate frame and the other of `said elements being connected to said frame members, a motor supported between said trame members below'said platform, and drivingf connections within said easing element and between said motor and said thrust element 'for movin the latter:

y7. ln apparatus of the e. ass described, the eombina'tion` Iet a frame having a pair ot' relatively low, longitudinally,extending side members, supporting' wheels for said frame, a platform mounted to move upwardly and downwardly relative to said members, an intermediate `trame slidably supported on said side members to move endwise between them and said platform, devices interposed between said intermediatetrame and said platform tor raisingjthe latter when the intermediate trame is moved in one direction, means, .including a motor.i between said side mem-hers and below said platform for operating;n said intermediate frame, and means connected to one of said side members and said platform and arranged to prevent end- -wise movement ot the latter'while being 8. in apparatus et the class described, the eombinationot a frame, supporting Wheels therefor, s niet?? 'n mounted on tlie freine sind connected 'thereto lay e device which permits its movement vertically, e. motor, en intermediate irs-nie slidsoly mounted on seid first mentioned lrunie between it and seid platform, power mechanism between seid motor and intermediate traine, seid meeli` anisin inelnding u screw and o nut the .zines of wliioli rire disposed substantially in the plane ot inorement of said internnwliate frame, and devices between said intermediate tranne end seid platform for raising the latterl when said intermediate irnine is moved in one direction.

9. In apparatus ot the class described, the

combination of e iframe having on elevsted portion and e low lying;- portion eerrying e platform adapted to be projected into lifting relationship to n loud to engage the same, supporting Wheels for sziid traine, means for driving Certain of smid wheels, and ineens disposed on seid low lying por tion of the freine and below seid platform for raising :ind loweringl 'the latter, said ineens Comprising an intern'iediate freine slidnbly engaging said lon* lying' portion, a

Y motor mounted on seid ioni' lying portion and devices between said motor and seid intermediate freine/.for sliding it sind between said intermediate :trame und seid platform for vertically moving the latter.

10. In apparatus of the class described,

tween seni tri-me and seid plstitorm ing to` prevent endrfise i'noren'ient ol ilfit- 'ter when e ted nnen oy said interin treme.

tine; platform triielr, Combination et e ironie comprising; e ra tively ion' freine seoion sind :in eier tion, traction Whels for i and elevate-d seetion, ineens snnpi'irted by seid elevated ses tion 'for drivin@ said trzietion Wheels snppoiting wheels r seid lon' freine see-t l platform carried by the letter seviion snel bodily inovslile relativetliereto, s motor ste tionarily Carried oy seid low freine section between the sides tliereot und below the plane of its upper surfers), and sonni-stione between seid motor and sind pletiorin for raising sind lowering the letter. n y

i3. ln apparatus of tlie elses described,

tlie Combination or s, r'rsine having :i pair ot' relatively low liol'izoi'ital, longitudinally e3;- tenflii'iij ineinl? one end of the freine. supportingr Wheels for seid freine, two said Wlieels being relatively snisll. indiennter and arranged near the outer end of seid horizontal members, n pletforin moi/ably rnonnleel on seid liorisontnl members, wheretlie combination of a frame having en ele-` Voted portion and s low lying portion carry ing a, platform adapted to be projected lie low loads to engage the same, supporting Wheels for said frame, means for driving certsin'of said wheels, and Ineens disposed on said low lying portion of the freine and below said, platform for reising and lowering tlie letter, said means comprising en intermediate trame slidaielyengaging seid low lying portion, s, motor mounted on seid low lying portion, a' mechanism, including 'a screw and s nut, between seid motor end said intermediate freine lfor sliding and deviees bet-Ween seid intermediate 'traine end platform for moving the latter vertically l1. ln epperstns of the class deseritied, the combination of s frame having en elevated portion and s, low lying portion een ryinge platform adapted to loe projected oy it may he' raised und lowered, and' ineelienisni, including e motor, stetionarily mounted lieti-Veen seid horizontal members and e. slide mounted on seid horizontal members and operatively eonneot-ed to seid platform 'for raising endlowering; it,

14e. ln a truck eonstrnotion, the combim-A tion of ai freine lining e, psir of relatively low horizontal longitudinally extending members, n, pair of transverse members between said horizontal members, n. longi tndinsl. support connected to seid trims-.verse members and arranged eentrnlly oi said .longitudinally extending members, e pair ot 'wheels mounted to swingrelative to seid snpport, ple-torni movably mounted on seid longitndinedily extending members, whereby it be raised end lowered, :find spouting mechanism for raising and lowering seid platform, seid mechanism includings motor stotionerily supported between seid longitudinally extending members and a slide inou'in'ued thereon and operatively comm-teil lto seid pletlm'in lor operating it, .said trsnsinto lifting relationship to e load to engelse the seine, supporting wheels lior seid freine, menne for driving); Certain oif seid Wheels, Ineens disposed on seid los* lying' portion ot the frame and `oelow seid platform for raisin ond lowering the letter, seid mea-ns comn pausing an intermediate trarne slidsioly ere gagging seid low lying portion, n motor mounted on said low. lying portion and de- Vices inet-Ween seid motor end ssidinterniediste 'frame for sliding it and between seid intermediate treme and platform for vertioelly moving the letter, end connections be- Ulli 

